CN203500506U - High-precision dished plate butterfly valve - Google Patents
High-precision dished plate butterfly valve Download PDFInfo
- Publication number
- CN203500506U CN203500506U CN201320515952.8U CN201320515952U CN203500506U CN 203500506 U CN203500506 U CN 203500506U CN 201320515952 U CN201320515952 U CN 201320515952U CN 203500506 U CN203500506 U CN 203500506U
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- China
- Prior art keywords
- valve
- valve seat
- dish plate
- precision
- valve rod
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- Expired - Fee Related
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Abstract
The utility model relates to a high-precision dished plate butterfly valve. According to the high-precision dished plate butterfly valve, the outer edge of a dished plate is polished to form a micro-semispherical surface and an operation moment is reduced; an arc-shaped groove is formed in the middle of the outer edge of the dished plate; bidirectional dual seals are formed in the outer edges of the two sides of the arc-shaped groove; a valve seat is of a cylindrical structure which is integrally molded by rubber; an orthohexagonal valve rod mounting hole matched with a valve rod is axially arranged in the middle of the valve seat in the radial direction; a middle convex ring is coaxially arranged on the outer wall of the middle part of the valve seat; the section of the middle convex ring is convex from the middle part to the direction of the dished plate and a sealing ring groove is formed between a bulge and the valve seat; annular supporting rings are arranged at the two ends of the sealing groove in the axial direction; the annular supporting rings at the two ends are in sealed match with a valve body. The high-precision dished plate butterfly valve is high in structural strength and good in sealing performance; a valve plate is polished to have high matching precision with the valve seat; the valve is easy to control, small in torque resistance and simple in structure; the installation of valve parties is simple and the service life is long.
Description
Technical field
The utility model belongs to valve field, especially a kind of high-precision dish plate butterfly valve.
Background technology
Engineering pipeline transportation art valve use widely, the basic structure of present valve is that co-axial seal is embedded in valve seat in valve body, radially installed valve rod on valve body, dish plate is fixedly mounted with valve rod in valve body, dish plate and valve base sealing coordinate, dish plate under the driving of valve rod rotation or movement so as to opening and closing the runner in valve seat.Valve body outer radial is formed with multiple flange plates for being connected with pipeline, flange plate and is formed with bolt mounting holes.
At present, interfered between dish edges of boards edge and valve seat and cause the torsion of valve big, and the frictional force of dish plate and valve seat is big, causes valve seat to be easily damaged, so as to cause valve seal not tight.Moreover, dish plate is that screw is fixed with valve rod, but the end of screw can be exposed outside valve plate, and need to make mounting hole on valve plate, the overcoat of destructive valve plate surface, screw position is easily damaged, and screw generation shake is de- in long-term use, it is difficult to repair, cause valve bulk life time shorter.
Utility model content
The purpose of this utility model is to overcome in place of the deficiencies in the prior art that there is provided a kind of high-precision dish plate butterfly valve reasonable in design, simple in construction, easy to operate, long service life.
The utility model solves its technical problem and takes following technical scheme to realize：
A kind of high-precision dish plate butterfly valve, including valve body, valve rod, valve seat, dish plate and handle, radially installed has a valve rod in the middle part of valve body, and the valve rod upper end stretches out valve body and is coaxially installed with one handle；Valve seat is axially installed with valve body, radially installed has dish plate on the valve rod in valve seat, valve outer wall spaced radial is formed with multiple installing plates 8, the plurality of installing plate and is formed with a mounting hole, it is characterised in that：
The valve rod is positive six prismsby structure, and valve plate is coaxially inlaid in regular hexagon valve rod mounting hole made in the middle part of dish plate, and dish plate is double-sided symmetrical structure；
The polished micro- hemisphere face of processing of dish plate outer rim, to reduce and be formed with an arc groove in the middle part of operational torque, and dish plate outer rim, the outer rim of the arc groove both sides forms two-way dual-seal；
The valve seat is integrally formed the radially coaxial valve rod mounting hole for being formed with the regular hexagon coordinated with valve rod in the middle part of the cylinder barrel shaped structure being made, the valve seat for rubber；Wall coaxial is formed with a middle part bulge loop in the middle part of valve seat, the middle part bulge loop section is that middle part is raised to dish plate direction, and closure gasket groove is formed between the projection and valve seat, the axial two ends of the closure gasket groove are formed with annular brace circle, seal and coordinate between the annular brace circle and valve body at the two ends.
Moreover, the axial two ends outer rim of the valve seat is formed with edge bulge loop, the edge bulge loop is inlaid in the made valve seat mounting groove in the axial two ends of valve body.
Moreover, being formed with coaxial limited ring groove in the valve seat of the middle part bulge loop correspondence position, co-axial seal coordinates setting-in annular brace circle in the limited ring groove.
Advantage of the present utility model and good effect are：
1st, the support performance of the rubber gasket of this butterfly valve is good, stable and firm, simple and compact for structure, and regulation performance is good, it is ensured that support torque is unlikely to deform again.
2nd, the machining accuracy of this butterfly valve is high, and valve seat is unlikely to deform, and tolerance is small, and the deformation effect such as expansion upheaval of valve seat is small, the long service life of valve seat.
3rd, the dish plate appearance and size of this butterfly valve is accurate, and good airproof performance after throttling, without interference between dish plate and valve seat, so that ensure that operational torque is small, valve long service life.
4th, the utility model structural strength is high, good seal performance, and the polished processing of valve plate and valve seat quality of fit are high, and this valve is easily controlled, and torque resistance is small, and simple in construction, and the installation of valve part is simple, long service life.
Brief description of the drawings
Fig. 1 is cuts open structural front view in of the present utility model；
Fig. 2 be Fig. 1 in cut open right view；
Fig. 3 for Fig. 2 A-A to enlarged section.
Embodiment
Below in conjunction with the accompanying drawings and the utility model is described in further detail by specific embodiment, following examples are descriptive, are not limited, it is impossible to limit protection domain of the present utility model with this.
A kind of high-precision dish plate butterfly valve, including valve body 3, valve rod 2, valve seat 4, dish plate 5 and handle 1, as shown in accompanying drawing 1 to accompanying drawing 2, radially installed has a valve rod in the middle part of valve body, and the valve rod upper end stretches out valve body and is coaxially installed with one handle；Valve seat is axially installed with valve body, radially installed has dish plate on the valve rod in valve seat.
Valve outer wall spaced radial is formed with multiple installing plates 8, the plurality of installing plate and is formed with a mounting hole, for being connected with pipe flange.
Innovative point of the present utility model is：
The valve rod is positive six prismsby structure, and valve plate is coaxially inlaid in regular hexagon valve rod mounting hole made in the middle part of dish plate, and dish plate is double-sided symmetrical structure, dish plate rotation under the twisting force of valve rod, so that the keying of control valve；The micro- hemisphere face of the polished processing of dish plate outer rim, to reduce and be formed with an arc groove 9 in the middle part of operational torque, and dish plate outer rim, the outer rim of the arc groove both sides forms two-way dual-seal, coordinates during lift-off seal with the sealing of valve seat.
The valve seat is integrally formed the radially coaxial valve rod mounting hole for being formed with the regular hexagon coordinated with valve rod in the middle part of the cylinder barrel shaped structure being made, the valve seat for rubber；The axial two ends outer rim of valve seat is formed with edge bulge loop 7, and the edge bulge loop is inlaid in the made valve seat mounting groove in the axial two ends of valve body.
Wall coaxial is formed with a middle part bulge loop 6 in the middle part of valve seat, as shown in Figure 3, the middle part bulge loop section is that middle part is raised to dish plate direction, and it is formed with closure gasket groove between the projection and valve seat, the axial two ends of the closure gasket groove are formed with annular brace circle 10, seal and coordinate between the annular brace circle and valve body at the two ends.
Coaxial limited ring groove is formed with order to firmly support seating position, and retain in elastic space, the valve seat of the middle part bulge loop correspondence position, co-axial seal coordinates setting-in annular brace circle in the limited ring groove.This valve seat construction is simple, effectively prevents that valve seat from moving axially, good stability, and middle part be formed with strengthen bulge loop valve seat intensity it is big, it is to avoid valve seat protuberance deformation.
Edge bulge loop, middle part bulge loop, annular brace circle and the valve seat at the two ends are integrally made.
Although disclosing embodiment of the present utility model and accompanying drawing for the purpose of illustration, it will be appreciated by those skilled in the art that：Do not departing from the utility model and spirit and scope of the appended claims, it is various replace, to change and modifications all be possible, therefore, scope of the present utility model is not limited to embodiment and accompanying drawing disclosure of that.
Claims (3)
1. a kind of high-precision dish plate butterfly valve, including valve body, valve rod, valve seat, dish plate and handle, radially installed has a valve rod in the middle part of valve body, and the valve rod upper end stretches out valve body and is coaxially installed with one handle；Valve seat is axially installed with valve body, radially installed has dish plate on the valve rod in valve seat, valve outer wall spaced radial is formed with multiple installing plates（8）, a mounting hole is formed with the plurality of installing plate, it is characterised in that：
The valve rod is positive six prismsby structure, and valve plate is coaxially inlaid in regular hexagon valve rod mounting hole made in the middle part of dish plate, and dish plate is double-sided symmetrical structure；
The polished micro- hemisphere face of processing of dish plate outer rim, to reduce and be formed with an arc groove in the middle part of operational torque, and dish plate outer rim, the outer rim of the arc groove both sides forms two-way dual-seal；
The valve seat is integrally formed the radially coaxial valve rod mounting hole for being formed with the regular hexagon coordinated with valve rod in the middle part of the cylinder barrel shaped structure being made, the valve seat for rubber；Wall coaxial is formed with a middle part bulge loop in the middle part of valve seat, the middle part bulge loop section is that middle part is raised to dish plate direction, and closure gasket groove is formed between the projection and valve seat, the axial two ends of the closure gasket groove are formed with annular brace circle, seal and coordinate between the annular brace circle and valve body at the two ends.
2. high-precision dish plate butterfly valve according to claim 1, it is characterised in that：The axial two ends outer rim of the valve seat is formed with edge bulge loop, and the edge bulge loop is inlaid in the made valve seat mounting groove in the axial two ends of valve body.
3. high-precision dish plate butterfly valve according to claim 1, it is characterised in that：Coaxial limited ring groove is formed with the valve seat of the middle part bulge loop correspondence position, co-axial seal coordinates setting-in annular brace circle in the limited ring groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320515952.8U CN203500506U (en) | 2013-08-22 | 2013-08-22 | High-precision dished plate butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320515952.8U CN203500506U (en) | 2013-08-22 | 2013-08-22 | High-precision dished plate butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203500506U true CN203500506U (en) | 2014-03-26 |
Family
ID=50331486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320515952.8U Expired - Fee Related CN203500506U (en) | 2013-08-22 | 2013-08-22 | High-precision dished plate butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203500506U (en) |
-
2013
- 2013-08-22 CN CN201320515952.8U patent/CN203500506U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20150822 |
|
| EXPY | Termination of patent right or utility model |